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- W2014136211 abstract "Gadolinium-containing phosphonate-coated gold nanoparticles were prepared and then non-covalently coated with an amphiphilic fluorous monomer. The monomer spontaneously self-assembles into a non-covalent monolayer shell around the particle. The binding of the shell utilizes a guanidinium-phosphonate interaction analogous to the one exploited by the Wender molecular transporter system. Particle-shell binding was characterized by a 27% decrease in 19F T1 of the fluorous shell upon exposure to the paramagnetic gadolinium in the particle and a corresponding increase in hydrodynamic diameter from 3 nm to 4 nm. Interestingly, a much smaller modulation of 19F T1 is observed when the shell monomer is treated with a phosphonate-free particle. By contrast, the phosphonate-free particle is a much more relaxive 1H T1 agent for water. Together, these observations show that the fluoroalkylguanidinium shell binds selectively to the phosphonate-covered particle. The system's relaxivity and selectivity give it potential for use in 19F based nanotheranostic agents." @default.
- W2014136211 created "2016-06-24" @default.
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- W2014136211 creator A5042838331 @default.
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- W2014136211 date "2013-09-01" @default.
- W2014136211 modified "2023-09-26" @default.
- W2014136211 title "A noncovalent, fluoroalkyl coating monomer for phosphonate-covered nanoparticles" @default.
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- W2014136211 doi "https://doi.org/10.1016/j.tet.2013.05.092" @default.
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